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RFC 2266

 
 
 

Definitions of Managed Objects for IEEE 802.12 Repeater Devices

Part 3 of 3, p. 33 to 56
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          vgRptrPortReadableFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is the number of good frames of
                      valid frame length that have been received on
                      this port.  This counter is incremented by one
                      for each frame received on the port which is not
                      counted by any of the following error counters:
                      vgRptrPortIPMFrames, vgRptrPortOversizeFrames,
                      vgRptrPortNullAddressedFrames, or
                      vgRptrPortDataErrorFrames.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aReadableFramesReceived."
              ::= { vgRptrMonPortEntry 1 }

          vgRptrPortReadableOctets OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in good frames that have been received
                      on this port.  This counter is incremented by
                      OctetCount for each frame received on this port
                      which has been determined to be a readable frame
                      (i.e. each frame counted by
                      vgRptrPortReadableFrames).

                      Note that this counter can roll over very
                      quickly.  A management station is advised to
                      also poll the vgRptrPortReadOctetRollovers
                      object, or to use the 64-bit counter defined by
                      vgRptrPortHCReadableOctets instead of the two
                      32-bit counters.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

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                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aReadableOctetsReceived."
              ::= { vgRptrMonPortEntry 2 }

          vgRptrPortReadOctetRollovers OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of times
                      that the associated instance of the
                      vgRptrPortReadableOctets counter has rolled over.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aReadableOctetsReceived."
              ::= { vgRptrMonPortEntry 3 }

          vgRptrPortHCReadableOctets OBJECT-TYPE
              SYNTAX     Counter64
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in good frames that have been received
                      on this port.  This counter is incremented by
                      OctetCount for each frame received on this port
                      which has been determined to be a readable frame
                      (i.e. each frame counted by
                      vgRptrPortReadableFrames).

                      This counter is a 64 bit version of
                      vgRptrPortReadableOctets.  It should be used by
                      Network Management protocols which support 64 bit
                      counters (e.g. SNMPv2).

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                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aReadableOctetsReceived."
              ::= { vgRptrMonPortEntry 4 }

          vgRptrPortUnreadableOctets OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in invalid frames that have been
                      received on this port.  This counter is
                      incremented by OctetCount for each frame received
                      on this port which is counted by
                      vgRptrPortIPMFrames, vgRptrPortOversizeFrames,
                      vgRptrPortNullAddressedFrames, or
                      vgRptrPortDataErrorFrames.  This counter can be
                      combined with vgRptrPortReadableOctets to
                      calculate network utilization.

                      Note that this counter can roll over very
                      quickly.  A management station is advised to
                      also poll the vgRptrPortUnreadOctetRollovers
                      object, or to use the 64-bit counter defined by
                      vgRptrPortHCUnreadableOctets instead of the two
                      32-bit counters.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aOctetsInUnreadableFramesRcvd."
              ::= { vgRptrMonPortEntry 5 }

          vgRptrPortUnreadOctetRollovers OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only

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              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of times
                      that the associated instance of the
                      vgRptrPortUnreadableOctets counter has rolled
                      over.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aOctetsInUnreadableFramesRcvd."
              ::= { vgRptrMonPortEntry 6 }

          vgRptrPortHCUnreadableOctets OBJECT-TYPE
              SYNTAX     Counter64
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in invalid frames that have been
                      received on this port.  This counter is
                      incremented by OctetCount for each frame received
                      on this port which is counted by
                      vgRptrPortIPMFrames, vgRptrPortOversizeFrames,
                      vgRptrPortNullAddressedFrames, or
                      vgRptrPortDataErrorFrames.  This counter can be
                      combined with vgRptrPortHCReadableOctets to
                      calculate network utilization.

                      This counter is a 64 bit version of
                      vgRptrPortUnreadableOctets.  It should be used
                      by Network Management protocols which support 64
                      bit counters (e.g. SNMPv2).

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aOctetsInUnreadableFramesRcvd."

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              ::= { vgRptrMonPortEntry 7 }

          vgRptrPortHighPriorityFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of high priority frames
                      that have been received on this port.  This
                      counter is incremented by one for each high
                      priority frame received on this port.  This
                      counter includes both good and bad high priority
                      frames, as well as high priority training frames.
                      This counter does not include normal priority
                      frames which were priority promoted.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aHighPriorityFramesReceived."
              ::= { vgRptrMonPortEntry 8 }

          vgRptrPortHighPriorityOctets OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in high priority frames that have been
                      received on this port.  This counter is
                      incremented by OctetCount for each frame received
                      on this port which is counted by
                      vgRptrPortHighPriorityFrames.

                      Note that this counter can roll over very
                      quickly.  A management station is advised to
                      also poll the vgRptrPortHighPriOctetRollovers
                      object, or to use the 64-bit counter defined by
                      vgRptrPortHCHighPriorityOctets instead of the two
                      32-bit counters.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

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                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aHighPriorityOctetsReceived."
              ::= { vgRptrMonPortEntry 9 }

          vgRptrPortHighPriOctetRollovers OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of times
                      that the associated instance of the
                      vgRptrPortHighPriorityOctets counter has rolled
                      over.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aHighPriorityOctetsReceived."
              ::= { vgRptrMonPortEntry 10 }

          vgRptrPortHCHighPriorityOctets OBJECT-TYPE
              SYNTAX     Counter64
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in high priority frames that have been
                      received on this port.  This counter is
                      incremented by OctetCount for each frame received
                      on this port which is counted by
                      vgRptrPortHighPriorityFrames.

                      This counter is a 64 bit version of
                      vgRptrPortHighPriorityOctets.  It should be used
                      by Network Management protocols which support
                      64 bit counters (e.g. SNMPv2).

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                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aHighPriorityOctetsReceived."
              ::= { vgRptrMonPortEntry 11 }

          vgRptrPortNormPriorityFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of normal priority frames
                      that have been received on this port.  This
                      counter is incremented by one for each normal
                      priority frame received on this port. This
                      counter includes both good and bad normal
                      priority frames, as well as normal priority
                      training frames and normal priority frames which
                      were priority promoted.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aNormalPriorityFramesReceived."
              ::= { vgRptrMonPortEntry 12 }

          vgRptrPortNormPriorityOctets OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in normal priority frames that have
                      been received on this port.  This counter is
                      incremented by OctetCount for each frame received
                      on this port which is counted by
                      vgRptrPortNormPriorityFrames.

                      Note that this counter can roll over very
                      quickly.  A management station is advised to
                      also poll the vgRptrPortNormPriOctetRollovers
                      object, or to use the 64-bit counter defined by
                      vgRptrPortHCNormPriorityOctets instead of the two
                      32-bit counters.

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                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aNormalPriorityOctetsReceived."
              ::= { vgRptrMonPortEntry 13 }

          vgRptrPortNormPriOctetRollovers OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of times
                      that the associated instance of the
                      vgRptrPortNormPriorityOctets counter has rolled
                      over.

                      This two-counter mechanism is provided for those
                      network management protocols that do not support
                      64-bit counters (e.g. SNMPv1).  Note that
                      retrieval of these two counters in the same PDU
                      is NOT guaranteed to be atomic.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aNormalPriorityOctetsReceived."

              ::= { vgRptrMonPortEntry 14 }

          vgRptrPortHCNormPriorityOctets OBJECT-TYPE
              SYNTAX     Counter64
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of octets
                      contained in normal priority frames that have
                      been received on this port.  This counter is
                      incremented by OctetCount for each frame received

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                      on this port which is counted by
                      vgRptrPortNormPriorityFrames.

                      This counter is a 64 bit version of
                      vgRptrPortNormPriorityOctets.  It should be used
                      by Network Management protocols which support
                      64 bit counters (e.g. SNMPv2).

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aNormalPriorityOctetsReceived."
              ::= { vgRptrMonPortEntry 15 }

          vgRptrPortBroadcastFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of broadcast packets that
                      have been received on this port.  This counter is
                      incremented by one for each readable frame
                      received on this port whose destination MAC
                      address is the broadcast address.  Frames
                      counted by this counter are also counted by
                      vgRptrPortReadableFrames.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aBroadcastFramesReceived."
              ::= { vgRptrMonPortEntry 16 }

          vgRptrPortMulticastFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of multicast packets that
                      have been received on this port.  This counter is
                      incremented by one for each readable frame
                      received on this port whose destination MAC
                      address has the group address bit set, but is not
                      the broadcast address.  Frames counted by this

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                      counter are also counted by
                      vgRptrPortReadableFrames, but not by
                      vgRptrPortBroadcastFrames.  Note that when the
                      value of the instance vgRptrInfoCurrentFramingType
                      for the repeater that this port is associated
                      with is equal to 'frameType88025', this count
                      includes packets addressed to functional
                      addresses.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aMulticastFramesReceived."
              ::= { vgRptrMonPortEntry 17 }

          vgRptrPortNullAddressedFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of null addressed packets
                      that have been received on this port.  This
                      counter is incremented by one for each frame
                      received on this port with a destination MAC
                      address consisting of all zero bits.  Both void
                      and training frames are included in this
                      counter.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aNullAddressedFramesReceived."
              ::= { vgRptrMonPortEntry 18 }

          vgRptrPortIPMFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of the number of frames
                      that have been received on this port with an
                      invalid packet marker and no PMI errors.  A
                      repeater will write an invalid packet marker to
                      the end of a frame containing errors as it is

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                      forwarded through the repeater to the other
                      ports.  This counter is incremented by one for
                      each frame received on this port which has had an
                      invalid packet marker added to the end of the
                      frame.

                      This counter indicates problems occurring in the
                      domain of other repeaters, as opposed to problems
                      with cables or devices directly attached to this
                      repeater.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aIPMFramesReceived."
              ::= { vgRptrMonPortEntry 19 }

          vgRptrPortOversizeFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of oversize frames
                      received on this port.  This counter is
                      incremented by one for each frame received on
                      this port whose OctetCount is larger than the
                      maximum legal frame size.

                      The frame size which causes this counter to
                      increment is dependent on the current value of
                      vgRptrInfoCurrentFramingType for the repeater that
                      the port is associated with.  When
                      vgRptrInfoCurrentFramingType is equal to
                      frameType88023 this counter will increment for
                      frames that are 1519 octets or larger.  When
                      vgRptrInfoCurrentFramingType is equal to
                      frameType88025 this counter will increment for
                      frames that are 4521 octets or larger.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aOversizeFramesReceived."
              ::= { vgRptrMonPortEntry 20 }

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          vgRptrPortDataErrorFrames OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is a count of errored frames
                      received on this port.  This counter is
                      incremented by one for each frame received on
                      this port with any of the following errors: bad
                      FCS (with no IPM), PMI errors (excluding frames
                      with an IPM error as the only PMI error), or
                      undersize (with no IPM).  Does not include
                      packets counted by vgRptrPortIPMFrames,
                      vgRptrPortOversizeFrames, or
                      vgRptrPortNullAddressedFrames.

                      This counter indicates problems with cables or
                      devices directly connected to this repeater, while
                      vgRptrPortIPMFrames indicates problems occurring
                      in the domain of other repeaters.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aDataErrorFramesReceived."
              ::= { vgRptrMonPortEntry 21 }

          vgRptrPortPriorityPromotions OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This counter is incremented by one each time the
                      priority promotion timer has expired on this port
                      and a normal priority frame is priority
                      promoted.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aPriorityPromotions."
              ::= { vgRptrMonPortEntry 22 }

          vgRptrPortTransitionToTrainings OBJECT-TYPE

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              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This counter is incremented by one each time the
                      vgRptrPortStatus object for this port transitions
                      into the 'training' state.

                      This counter may experience a discontinuity when
                      the value of the corresponding instance of
                      vgRptrPortLastChange changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aTransitionsIntoTraining."
              ::= { vgRptrMonPortEntry 23 }

          vgRptrPortLastChange OBJECT-TYPE
              SYNTAX     TimeStamp
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "The value of sysUpTime when the last of the
                      following occurred:
                        1) the agent cold- or warm-started;
                        2) the row for the port was created
                           (such as when a device or module was
                           added to the system); or
                        3) any condition that would cause one of
                           the counters for the row to experience
                           a discontinuity."
              ::= { vgRptrMonPortEntry 24 }


          vgRptrAddrTrack   OBJECT IDENTIFIER ::= { vgRptrObjects 3 }

          vgRptrAddrTrackRptr
              OBJECT IDENTIFIER ::= { vgRptrAddrTrack 1 }

          -- Currently unused

          vgRptrAddrTrackGroup
              OBJECT IDENTIFIER ::= { vgRptrAddrTrack 2 }
          -- Currently unused

          vgRptrAddrTrackPort
              OBJECT IDENTIFIER ::= { vgRptrAddrTrack 3 }

          vgRptrAddrTrackTable OBJECT-TYPE

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              SYNTAX     SEQUENCE OF VgRptrAddrTrackEntry
              MAX-ACCESS not-accessible
              STATUS     current
              DESCRIPTION
                  "Table of address mapping information about the
                  ports."
              ::= { vgRptrAddrTrackPort 1 }

          vgRptrAddrTrackEntry OBJECT-TYPE
              SYNTAX     VgRptrAddrTrackEntry
              MAX-ACCESS not-accessible
              STATUS     current
              DESCRIPTION
                  "An entry in the table, containing address mapping
                  information about a single port."
              INDEX      { vgRptrGroupIndex, vgRptrPortIndex }
              ::= { vgRptrAddrTrackTable 1 }

          VgRptrAddrTrackEntry ::=
              SEQUENCE {
                  vgRptrAddrLastTrainedAddress   OCTET STRING,
                  vgRptrAddrTrainedAddrChanges   Counter32,
                  vgRptrRptrDetectedDupAddress   TruthValue,
                  vgRptrMgrDetectedDupAddress    TruthValue
              }


          vgRptrAddrLastTrainedAddress OBJECT-TYPE
              SYNTAX     OCTET STRING (SIZE(0 | 6))
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is the MAC address of the last
                      station which succeeded in training on this port.
                      A cascaded repeater may train using the null
                      address.  If no stations have succeeded in
                      training on this port since the agent began
                      monitoring the port activity, the agent shall
                      return a string of length zero."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aLastTrainedAddress."
              ::= { vgRptrAddrTrackEntry 1 }

          vgRptrAddrTrainedAddrChanges OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current

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              DESCRIPTION
                      "This counter is incremented by one for each time
                      that the vgRptrAddrLastTrainedAddress object for
                      this port changes."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aTrainedAddressChanges."
              ::= { vgRptrAddrTrackEntry 2 }

          vgRptrRptrDetectedDupAddress OBJECT-TYPE
              SYNTAX     TruthValue
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This object is used to indicate that the
                      repeater detected an error-free training frame on
                      this port with a non-null source MAC address which
                      matches the value of vgRptrAddrLastTrainedAddress
                      of another active port in the same repeater.  This
                      is reset to 'false' when an error-free training
                      frame is received with a non-null source MAC
                      address which does not match
                      vgRptrAddrLastTrainedAddress of another port which
                      is active in the same repeater.

                      For the cascade port, this object will be 'true'
                      if the 'D' bit in the most recently received
                      error-free training response frame was set,
                      indicating the device at the other end of the link
                      believes that this repeater's cascade port is
                      using a duplicate address.  This may be because
                      the device at the other end of the link detected a
                      duplicate address itself, or, if the other device
                      is also a repeater, it could be because
                      vgRptrMgrDetectedDupAddress was set to 'true' on
                      the port that this repeater's cascade port is
                      connected to."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aLocalRptrDetectedDupAddr."
              ::= { vgRptrAddrTrackEntry 3 }

          vgRptrMgrDetectedDupAddress OBJECT-TYPE
              SYNTAX     TruthValue
              MAX-ACCESS read-write
              STATUS     current
              DESCRIPTION
                      "This object can be set by a management station

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                      when it detects that there is a duplicate MAC
                      address.  This object is OR'd with
                      vgRptrRptrDetectedDupAddress to form the value of
                      the 'D' bit in training response frames on this
                      port.

                      The purpose of this object is to provide a means
                      for network management software to inform an end
                      station that it is using a duplicate station
                      address.  Setting this object does not affect the
                      current state of the link; the end station will
                      not be informed of the duplicate address until it
                      retrains for some reason.  Note that regardless
                      of its station address, the end station will not
                      be able to train successfully until the network
                      management software has set this object back to
                      'false'.  Although this object exists on
                      cascade ports, it does not perform any function
                      since this repeater is the initiator of training
                      on a cascade port."
              REFERENCE
                      "IEEE Standard 802.12-1995, 13.2.4.5.1,
                      aCentralMgmtDetectedDupAddr."
              ::= { vgRptrAddrTrackEntry 4 }


          vgRptrTraps         OBJECT IDENTIFIER ::= { vgRptrMIB 2 }
          vgRptrTrapPrefix    OBJECT IDENTIFIER ::= { vgRptrTraps 0 }

          vgRptrHealth NOTIFICATION-TYPE
              OBJECTS    { vgRptrInfoOperStatus }
              STATUS     current
              DESCRIPTION
                      "A vgRptrHealth trap conveys information related
                      to the operational state of a repeater.  This trap
                      is sent when the value of an instance of
                      vgRptrInfoOperStatus changes.  The vgRptrHealth
                      trap is not sent as a result of powering up a
                      repeater.

                      The vgRptrHealth trap must contain the instance of
                      the vgRptrInfoOperStatus object associated with
                      the affected repeater.

                      The agent must throttle the generation of
                      consecutive vgRptrHealth traps so that there is at
                      least a five-second gap between traps of this
                      type.  When traps are throttled, they are dropped,

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                      not queued for sending at a future time.  (Note
                      that 'generating' a trap means sending to all
                      configured recipients.)"
              REFERENCE
                      "IEEE 802.12, Layer Management, 13.2.4.2.3,
                      nRepeaterHealth."
              ::= { vgRptrTrapPrefix 1 }

          vgRptrResetEvent NOTIFICATION-TYPE
              OBJECTS    { vgRptrInfoOperStatus }
              STATUS     current
              DESCRIPTION
                      "A vgRptrResetEvent trap conveys information
                      related to the operational state of a repeater.
                      This trap is sent on completion of a repeater
                      reset action.  A repeater reset action is defined
                      as a transition to its initial state as specified
                      in clause 12 [IEEE Std 802.12] when triggered by
                      a management command.

                      The vgRptrResetEvent trap is not sent when the
                      agent restarts and sends an SNMP coldStart or
                      warmStart trap.

                      The vgRptrResetEvent trap must contain the
                      instance of the vgRptrInfoOperStatus object
                      associated with the affected repeater.

                      The agent must throttle the generation of
                      consecutive vgRptrResetEvent traps so that there
                      is at least a five-second gap between traps of
                      this type.  When traps are throttled, they are
                      dropped, not queued for sending at a future time.
                      (Note that 'generating' a trap means sending to
                      all configured recipients.)"
              REFERENCE
                      "IEEE 802.12, Layer Management, 13.2.4.2.3,
                      nRepeaterReset."
              ::= { vgRptrTrapPrefix 2 }

          -- conformance information

          vgRptrConformance OBJECT IDENTIFIER ::= { vgRptrMIB 3 }

          vgRptrCompliances
                       OBJECT IDENTIFIER ::= { vgRptrConformance 1 }

          vgRptrGroups OBJECT IDENTIFIER ::= { vgRptrConformance 2 }

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          -- compliance statements

          vgRptrCompliance MODULE-COMPLIANCE
              STATUS     current
              DESCRIPTION
                      "The compliance statement for managed 802.12
                      repeaters."

              MODULE  -- this module
                  MANDATORY-GROUPS { vgRptrConfigGroup,
                                     vgRptrStatsGroup,
                                     vgRptrAddrGroup,
                                     vgRptrNotificationsGroup }

                  GROUP        vgRptrStats64Group
                  DESCRIPTION
                         "Implementation of this group is recommended
                         for systems which can support Counter64."

                  OBJECT       vgRptrInfoDesiredFramingType
                  MIN-ACCESS   read-only
                  DESCRIPTION
                          "Write access to this object is not required
                          in a repeater system that does not support
                          configuration of framing types."

              MODULE     SNMP-REPEATER-MIB
                  GROUP        snmpRptrGrpRptrAddrSearch
                  DESCRIPTION
                          "Implementation of this group is recommended
                          for systems which have the necessary
                          instrumentation to search all incoming data
                          streams for a particular source MAC address."
              ::= { vgRptrCompliances 1 }

          -- units of conformance

          vgRptrConfigGroup OBJECT-GROUP
              OBJECTS    {
                           vgRptrInfoMACAddress,
                           vgRptrInfoCurrentFramingType,
                           vgRptrInfoDesiredFramingType,
                           vgRptrInfoFramingCapability,
                           vgRptrInfoTrainingVersion,
                           vgRptrInfoOperStatus,
                           vgRptrInfoReset,
                           vgRptrInfoLastChange,
                           vgRptrGroupObjectID,

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                           vgRptrGroupOperStatus,
                           vgRptrGroupPortCapacity,
                           vgRptrGroupCablesBundled,
                           vgRptrPortType,
                           vgRptrPortAdminStatus,
                           vgRptrPortOperStatus,
                           vgRptrPortSupportedPromiscMode,
                           vgRptrPortSupportedCascadeMode,
                           vgRptrPortAllowedTrainType,
                           vgRptrPortLastTrainConfig,
                           vgRptrPortTrainingResult,
                           vgRptrPortPriorityEnable,
                           vgRptrPortRptrInfoIndex
                         }
              STATUS     current
              DESCRIPTION
                      "A collection of objects for managing the status
                      and configuration of IEEE 802.12 repeaters."
              ::= { vgRptrGroups 1 }

          vgRptrStatsGroup OBJECT-GROUP
              OBJECTS    {
                           vgRptrMonTotalReadableFrames,
                           vgRptrMonTotalReadableOctets,
                           vgRptrMonReadableOctetRollovers,
                           vgRptrMonTotalErrors,
                           vgRptrPortReadableFrames,
                           vgRptrPortReadableOctets,
                           vgRptrPortReadOctetRollovers,
                           vgRptrPortUnreadableOctets,
                           vgRptrPortUnreadOctetRollovers,
                           vgRptrPortHighPriorityFrames,
                           vgRptrPortHighPriorityOctets,
                           vgRptrPortHighPriOctetRollovers,
                           vgRptrPortNormPriorityFrames,
                           vgRptrPortNormPriorityOctets,
                           vgRptrPortNormPriOctetRollovers,
                           vgRptrPortBroadcastFrames,
                           vgRptrPortMulticastFrames,
                           vgRptrPortNullAddressedFrames,
                           vgRptrPortIPMFrames,
                           vgRptrPortOversizeFrames,
                           vgRptrPortDataErrorFrames,
                           vgRptrPortPriorityPromotions,
                           vgRptrPortTransitionToTrainings,
                           vgRptrPortLastChange
                         }
              STATUS     current

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              DESCRIPTION
                      "A collection of objects for providing statistics
                      for IEEE 802.12 repeaters.  Systems which support
                      Counter64 should also implement
                      vgRptrStats64Group."
              ::= { vgRptrGroups 2 }

          vgRptrStats64Group OBJECT-GROUP
              OBJECTS    {
                           vgRptrMonHCTotalReadableOctets,
                           vgRptrPortHCReadableOctets,
                           vgRptrPortHCUnreadableOctets,
                           vgRptrPortHCHighPriorityOctets,
                           vgRptrPortHCNormPriorityOctets
                         }
              STATUS     current
              DESCRIPTION
                      "A collection of objects for providing statistics
                      for IEEE 802.12 repeaters in a system that
                      supports Counter64."
              ::= { vgRptrGroups 3 }

          vgRptrAddrGroup OBJECT-GROUP
              OBJECTS    {
                           vgRptrAddrLastTrainedAddress,
                           vgRptrAddrTrainedAddrChanges,
                           vgRptrRptrDetectedDupAddress,
                           vgRptrMgrDetectedDupAddress
                         }
              STATUS     current
              DESCRIPTION
                      "A collection of objects for tracking addresses
                      on IEEE 802.12 repeaters."
              ::= { vgRptrGroups 4 }

          vgRptrNotificationsGroup NOTIFICATION-GROUP
              NOTIFICATIONS {
                              vgRptrHealth,
                              vgRptrResetEvent
                            }
              STATUS        current
              DESCRIPTION
                      "A collection of notifications used to indicate
                      802.12 repeater general status changes."
              ::= { vgRptrGroups 5 }

          END

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4.  Acknowledgements

   This document was produced by the IETF 100VG-AnyLAN Working Group,
   whose efforts were greatly advanced by the contributions of the
   following people:

       Paul Chefurka
       Bob Faulk
       Jeff Johnson
       Karen Kimball
       David Lapp
       Jason Spofford
       Kaj Tesink

   This document is based on the work of IEEE 802.12.

5.  References

   [1] Information processing systems - Open Systems Interconnection -
       Specification of Abstract Syntax Notation One (ASN.1),
       International Organization for Standardization.  International
       Standard 8824 (December, 1987).

   [2] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M. and
       S. Waldbusser, "Structure of Management Information for Version 2
       of the Simple Network Management Protocol (SNMPv2)", RFC 1902,
       January 1996.

   [3] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M. and
       S. Waldbusser, "Textual Conventions for Version 2 of the Simple
       Network Management Protocol (SNMPv2)", RFC 1903, January 1996.

   [4] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M. and
       S. Waldbusser, "Conformance Statements for Version 2 of the
       Simple Network Management Protocol (SNMPv2)", RFC 1904, January
       1996.

   [5] McCloghrie, K. and M. Rose, "Management Information Base for
       Network Management of TCP/IP-based internets - MIB-II", STD 17,
       RFC 1213, March 1991.

   [6] IEEE, "Demand Priority Access Method, Physical Layer and
       Repeater Specifications for 100 Mb/s Operation", IEEE Standard
       802.12-1995"

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   [7] de Graaf, K., D. Romascanu, D. McMaster, and K. McCloghrie,
       "Definitions of Managed Objects for IEEE 802.3 Repeater Devices",
       RFC 2108, 3Com Corporation, Madge Networks (Israel) Ltd., Cisco
       Systems, Inc., February, 1997.

   [8] McAnally, G., Gilbert, D. and J. Flick, "Conditional Grant of
       Rights to Specific Hewlett-Packard Patents In Conjunction With
       the Internet Engineering Task Force's Internet-Standard Network
       Management Framework", RFC 1988, August 1996.

   [9] Hewlett-Packard Company, US Patents 5,293,635 and 5,421,024.

6.  Security Considerations

   Certain management information defined in this MIB may be considered
   sensitive in some network environments.  Therefore, authentication of
   received SNMP requests and controlled access to management
   information should be employed in such environments.  The method for
   this authentication is a function of the SNMP Administrative
   Framework, and has not been expanded by this MIB.

   Several objects in the vgRptrConfigGroup allow write access.  Setting
   these objects can have a serious effect on the operation of the
   network, including modifying the framing type of the network,
   resetting the repeater, enabling and disabling individual ports, and
   modifying the allowed capabilities of end stations attached to each
   port.  It is recommended that implementers seriously consider whether
   set operations should be allowed without providing, at a minimum,
   authentication of request origin.

   One particular object in this MIB, vgRptrPortAllowedTrainType, is
   considered significant for providing operational security in an
   802.12 network.  It is recommended that network administrators
   configure this object to the 'allowEndNodesOnly' value on all ports
   except ports which the administrator knows are attached to cascaded
   repeaters or devices which require promiscuous receive capability
   (bridges, switches, RMON probes, etc.).  This will prevent
   unauthorized users from extending the network (by attaching cascaded
   repeaters or bridges) without the administrator's knowledge, and will
   prevent unauthorized end nodes from listening promiscuously to
   network traffic.

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7.  Author's Address

   John Flick
   Hewlett Packard Company
   8000 Foothills Blvd. M/S 5556
   Roseville, CA 95747-5556

   Phone: +1 916 785 4018
   Email: johnf@hprnd.rose.hp.com

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8.  Full Copyright Statement

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.